198 Dr. Sharp's Revision of the 



91. Homalota triangulum. 



Nigra, sat nitida, elytris testaceis, circa scutellum an- 

 gulisque apicis determinate nigris, pedibus fusco-testa- 

 ceis ; thorace transverse ; abdomine supra segmentis 

 2-4 parce punctatis, 5 et 6 leevigatis. Long, l^-lf lin. 



Mas ; abdomine segmento 7° dorsali apice truncato, 

 et crenulato. 



Fern. ; segmento 7° supra et infra margine posteriors 

 medio obsoletissime emarginato. 



H. triangulum, KJr. Ins. Deutsch. ii. 273 ; Wat. Cat. 



Allied to H. trinotata, but more parallel, with the 

 thorax more developed, the end joint of the antennae 

 longer, and the black triangular patch about the scutel- 

 lum larger and more distinct. The antennas are black, 

 moderately long and stout, slightly thickened towards 

 the apex; joints two and three of about equal length, 

 four scarcely broader than three, about as long as broad, 

 from this onwards very slightly thickened, and each joint 

 transverse, but not strongly so ; eleventh joint long, more 

 than twice the length of the tenth. Head narrower than 

 the thorax, black, finely and indistinctly punctured. 

 Thorax a little narrower than the elytra, about a third 

 broader than long, the sides gently rounded at the an- 

 terior angles, then nearly straight behind, pretty finely 

 and closely punctured, with a very indistinct impression 

 in front of the base in the middle. The elytra are more 

 than a third longer than the thorax, testaceous, with a 

 large, black, well-defined, triangular patch at the scutel- 

 lum, and with a black patch at each side, rather closely 

 and distinctly punctured. The abdomen is black and 

 shining, segments two to four sparingly punctured, fifth 

 segment very sparingly punctured, sixth nearly impunc- 

 tate. Legs fusco-testaceous, the thighs darker than the 

 tibiae. 



In the male, the apex of the dorsal plate of the seventh 

 segment of the abdomen is truncate and crenulate, the 

 outer tooth on each side being rather the more distinct ; 

 the venti-al plate is a little produced, and has the hind 

 margin rounded. 



The female has the posterior margins of the same seg- 

 ment, both above and below, very indistinctly emai'ginate 

 in the middle. 



